MIL-DTL-38999 Series II connectors offer reliable performance in harsh environments, with up to 128 contacts sealed for protection. Operating between -65°C and 200°C, they come in various configurations including front and rear wall mount, jam nut, and box mount receptacles. Available in 9 shell sizes with 52 insert arrangements, these connectors feature gold-plated, removable crimp contacts in sizes 22D, 22M, 22, 20, 16, and 12. Crafted from aluminum with options for finishes like electroless nickel, they ensure durability and conductivity. Meeting military specification MIL-DTL-38999 II, these circular connectors are ideal for applications demanding environmental resistance and rugged performance.